Asiantool A4H Rotary Electrical Connector


147 in stock (can be backordered)

4-pole,  2x 4A @ 2x 30A, 250V, 1200rpm

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$129.00 $148.00

147 in stock (can be backordered)


 Asiantool A4H Rotary Electrical Connector

Asiantool presents the A4H rotary electrical connector for carry  4a @ 30A, 250V for each conductor. Particularly, the specifications table can be seen below.

Number of Channels4
Current for each channel2x 4A @ 2x 30A
Voltageup to 250V
Rotational Speed, max1200 rpm
Rotating Torque400gm-cm


Accordingly they have low internal resistance and usually have pin connections.  They can also produced with optional wires. They especially provide mercury transmission. With this, their working principles are different from slip rings. So Asiantool A4H and similar products can work for a long time. This indeed will reduce your costs.

At the same time, the liquid protects the electrical connection between the contacts without any wear. Thus, they have long lifespan. They can make an average of 2 billion cycles. However, the quality of the transmission signal always remains at a high level. They also provide a high level of transmission. This can happen even very sensitive signals at high rotation speeds.

Obviously these types of slip rings use mercury as the conductive medium. In other words, during the process, the mercury creates a connection between the stationary part and the rotating structure. Especially, this provides a high quality transmission link. This link has low sag resistance and less noise. Asiantool A4H is nice because it is a small and powerful.

Moreover, the most used mercury slipring models:

Mercury Slipring Usage Areas Table

Packaging Machines.
Military Vehicles.
Cable Drums.
Wind Turbines.
Textile Machinery.
Robot Arms.
Turntables or Tables.
Welding Machines.
Laminating Machines.
Heated rollers.
Cable reels.
Robot applications.
Thermocouples are strain gauges.
Remote video control.
Control tools semiconductor production.
VFD motor shaft ground.
Rotary Laser mercury slipring especially for LIDAR.

The Benefits of Mercury Slipring

Obviously there are benefits of this product. They indeed provide increased reliability. Particularly their working life is longer. They especially have extremely low electrical noise. They have less than 1 milliohm resistance. Their resistance is obviously less than 1 milliohm. They especially have low voltage Signals or High Power in one compact connector. Undoubtedly they require no maintenance cost.

Asiantool A4H Rotating Electrical Connector


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